<div class="box">
  <div class="logo">
    <!-- <img src="assets\img\logo.png"> -->
    <app-logo></app-logo>
  </div>
  <div style="flex: 1 1 auto">

  </div>
  <div class="lanuage-dropdown">
    <app-wenyao-lanuage-dropdown></app-wenyao-lanuage-dropdown>
  </div>
</div>